Big Bertha Trail Run

Course

A 10km loop around Bertha Loch repeated within a twelve-hour window, starting and finishing at the Green at Bertha Park. The route is fully marked and marshalled with one water station near the weir. There are minor road crossings but no closures.

Key dates

• ·
  Registration
  Not open yet
• ★
  Race day
  Sat 21 Aug 2027

About

The Big Bertha Trail Run is a 12-hour challenge where participants can complete as many 10km laps around Bertha Loch as possible. The event is open to solo runners and teams, offering an exciting and varied trail running experience.

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A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.